Liquid lutein is a pure natural feed additive refined from marigold flower through extraction, saponification, emulsification and changing the quality, high pressure homogenizing and other crafts. The supercritical lutein is a kind of lutein concrete obtained from fermentation of fresh marigold flower and extraction of lutein particles by supercritical CO2 fluid. The product has no special smell of lutein. Feed grade lutein powder is a pure-natural feed additive obtained from saponification of lutein resin taken from the marigold and then add a mixture of carrier. The zeaxanthin lutein powder with high content is obtained from marigold fresh flower under the process of fermentation, extraction, concentration, saponification, separation and other crafts. Its main components are lutein and dextrin. Food grade lutein powder is obtained from fresh marigold flower under the processes of fermentation, extraction, concentration, saponification and separation. Its main components are lutein and dextrin. Lutein is refined from fresh marigold flower under the processes of fermentation, precritical extraction, concentration and other crafts. Its main components are oils and wax existed in plants and various carotenes mainly like lutein.